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Citation |
Helmkamp JC. Am. J. Public Health 2001; 91(11): 1792-1795. |
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Affiliation |
Center for Rural Emergency Medicine, West Virginia University, Morgantown 26506-9151, USA. jhelmkamp@hsc.wvu.edu |
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Copyright |
(Copyright © 2001, American Public Health Association) |
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DOI |
unavailable |
PMID |
11684604 |
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PMCID |
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Abstract |
unavailable |